参考文献

Daukshas, V. K.; Udrenaite, E. B.; Gineitite, V. L.; Rukshenas, A. Yu.; Komovnikova, G. G.; Barauskaite, A. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1980 , p. 993 - 996 Khimiya Geterotsiklicheskikh Soedinenii, 1980 , vol. 16, # 10 p. 1315 - 1319